629949 has 4 divisors (see below), whose sum is σ = 839936. Its totient is φ = 419964.

The previous prime is 629939. The next prime is 629963. The reversal of 629949 is 949926.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 629949 - 2¹¹ = 627901 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (629929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104989 + ... + 104994.

It is an arithmetic number, because the mean of its divisors is an integer number (209984).

2⁶²⁹⁹⁴⁹ is an apocalyptic number.

It is an amenable number.

629949 is a deficient number, since it is larger than the sum of its proper divisors (209987).

629949 is a wasteful number, since it uses less digits than its factorization.

629949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209986.

The product of its digits is 34992, while the sum is 39.

The square root of 629949 is about 793.6932656890. The cubic root of 629949 is about 85.7238755143.

It can be divided in two parts, 62 and 9949, that added together give a triangular number (10011 = T₁₄₁).

The spelling of 629949 in words is "six hundred twenty-nine thousand, nine hundred forty-nine".